COOLING-WATER LEVEL CONTROL DEVICE FOR INCLINED-TYPE CABLE CONTINUOUS CROSSLINKING APPARATUS
PURPOSE:To enable manufacturing a good quality of cable by providing a cooling-water feeding means, a feed-water flow control means, and an interfacial drawing-off means, thereby reliably adjusting the water level of a cooling water and making a crosslinking device operation smooth. CONSTITUTION:Whe...
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Zusammenfassung: | PURPOSE:To enable manufacturing a good quality of cable by providing a cooling-water feeding means, a feed-water flow control means, and an interfacial drawing-off means, thereby reliably adjusting the water level of a cooling water and making a crosslinking device operation smooth. CONSTITUTION:When starting a cooling-water level control device, a feed-water flow control means 60 is operated, and a flow detection is made. At the same time, limitation is made of the degree of opening of the flow channels and the number of revolutions of a pump in a cooling-water feeding means 54, so as to make a control to maintain the quantity of feed water to be fixed, independently of the internal pressure of a crosslinking pipe 50. When the water level in a cooling section 52 amounts to several tens of percent, a state of feeding a fixed-flow cooling water is changed to a flow-controlled state based on the water level in the cooling section 52 and the quantity of feed water. Under a condition in which the cooling water in the section 52 reaches a maximal level to flow down from a water discharge pipe 57, regulation is made of the cooling-water transfer quantity in accordance with the water level in a storage water tub 58. Further, the suspended matter mixed into the cooling water is removed through operation of an interfacial draw-off means 62. This enables accurately controlling the quantity of feed water and reliably regulating the level of the water to produce a cable smoothly and reliably. |
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